Emerg Infect Dis. 2020 Sep;26(9):2263-5. doi: 10.3201/eid2609.201802. Epub 2020 Jun 29.
After returning from Europe to the United States, on March 1, 2020, a symptomatic teacher received positive test results for severe acute respiratory syndrome coronavirus 2. Of the 21 students exposed to the teacher in the classroom, serologic results suggested past infection for 2. Classroom contact may result in virus transmission.
2020 年 3 月 1 日，一位有症状的教师从欧洲返回美国后，严重急性呼吸综合征冠状病毒 2 的检测结果呈阳性。在课堂上与该教师有过接触的 21 名学生中，有 2 人的血清学结果提示曾有过感染。教室接触可能导致病毒传播。
